VulnerabilityPublished 14 Nov 2025Updated 24 Feb 2026

CVE-2025-13182: pojoin h3blog · Cross-site Scripting

Affects pojoin h3blogSource CVE Database V5

Public exploit available · CVSS 5.1 Medium.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 4.0 base score

5.1Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.2% chance of exploitation in 30 days – higher than 20% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

Base metrics

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: Low
User Interaction: Passive
Vulnerable system confidentiality: None
Vulnerable system integrity: Low
Vulnerable system availability: None
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

Threat metrics

Exploit Maturity: POC

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: Low: The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
User Interaction: Passive: Successful exploitation of this vulnerability requires limited interaction by the targeted user with the vulnerable system and the attacker’s payload. These interactions would be considered involuntary and do not require that the user actively subvert protections built into the vulnerable system.
Vulnerable system confidentiality: None: There is no loss of confidentiality within the Vulnerable System.
Vulnerable system integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact to the Vulnerable System.
Vulnerable system availability: None: There is no impact to availability within the Vulnerable System.
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.
Exploit Maturity: POC: Based on threat intelligence sources each of the following must apply: · Proof-of-concept is publicly available · No knowledge of reported attempts to exploit this vulnerability · No knowledge of publicly available solutions used to simplify attempts to exploit the vulnerability

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 14 Nov 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
GitHubpojoin/h3blog`pkg:github/pojoin/h3blog`Other threats	Affected =1.0	Fixed in–

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AI-suggested

To mitigate CVE-2025-13182, organizations should first check for any official patches or updates from pojoin addressing this vulnerability and apply them promptly. In the absence of patches, administrators should implement strict input validation and sanitization on the Title parameter within the /admin/cms/category/addtitle endpoint to neutralize malicious scripts. Employing a web application firewall (WAF) with rules targeting XSS payloads can provide an additional layer of defense. Restrict access to the admin interface by IP whitelisting or VPN-only access to reduce exposure. Enable Content Security Policy (CSP) headers to limit the execution of unauthorized scripts in browsers. Regularly audit and monitor admin activities and logs for suspicious behavior indicative of exploitation attempts. Educate administrators about the risks of clicking on untrusted links or inputs within the admin panel. Finally, consider isolating the blogging platform in a segmented network zone to limit lateral movement if compromised.

Description

A vulnerability was identified in pojoin h3blog 1.0. The impacted element is an unknown function of the file /admin/cms/category/addtitle. The manipulation of the argument Title leads to cross site scripting. The attack can be initiated remotely. The exploit is publicly available and might be used.

Impact

The primary impact of CVE-2025-13182 is on the integrity and confidentiality of administrative sessions within pojoin h3blog 1.0 installations. Exploiting this XSS vulnerability can allow attackers to execute arbitrary scripts in the context of an admin user, leading to session hijacking, theft of credentials, or unauthorized administrative actions such as content manipulation or configuration changes. This can compromise the security of the entire blogging platform and potentially the underlying server if further chained with other vulnerabilities. While availability is not directly affected, the trustworthiness and security posture of affected organizations can be severely damaged. Organizations relying on pojoin h3blog for content management may face data breaches or defacement, impacting reputation and compliance with data protection regulations. The presence of a public exploit increases the risk of opportunistic attacks, especially in environments with weak access controls or unmonitored admin interfaces.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 24 Feb 2026, 22:22 UTC

Technical details

References

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